The Spiral Array: An Algorithm for Determining Key Boundaries

  title={The Spiral Array: An Algorithm for Determining Key Boundaries},
  author={Elaine Chew},
Abstract. Computer models for determining key boundaries are important tools for computer analysis of music, computational modeling of music cognition, content-based categorization and retrieval of music information and automatic generating of expressive performance. This paper proposes a Boundary Search Algorithm (BSA) for determining points of modulation in a piece of music using a geometric model for tonality called the Spiral Array. For a given number of key changes, the computational… CONTINUE READING
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